Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 81, Issue -, Pages 305-312Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2015.11.028
Keywords
Wood plastic composites; Co-extrusion; Fire retardants; Weathering
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In this study, the influence of fire retardants, namely aluminum trihydrate, zinc borate, melamine, graphite, titanium dioxide on the durability of polypropylene-based co-extruded wood plastic composites is studied. The composites underwent accelerated weathering under a xenon-arc lamp source during 1000 h. FTIR analysis of the composite surface revealed a degradation process which was accompanied by chemical changes, including vinyl-like and carbonyl groups accumulation; fire retardants did not influence the photo-oxidation mechanism of the composite. Fire retardant-loaded samples had smaller color change compared to the unfilled one. The tensile properties of all composites declined after the weathering. Significant changes in the surface morphology of the weathered composites were observed with a scan electron microscope. (C) 2015 Elsevier Ltd. All rights reserved.
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